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FHopp.1
Associate III
since ‎2020-02-13
‎2023-06-14

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  • 19 Posts
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STM32 on 1.8V - I2C with 3.5 PullUp

2021-02-05
Hello,my STM32 is running with 1.8V and is connected via I2C to another chip. The I2C has an level of 3.5V (connected via pullup to 3.5). I now have communication problems. Is there any limitation for maximum voltage for the high level of I2C on STM3...

STM32 with SPI 1.8V connected to 3.5V MAX31865 cuases not working communication

2021-02-03
I have an 1.8V STM32 and an 3.5V MAX31865 which are connected via SPI, I used 10k Ohms pullups on data line to 3.5V. Now the problem is that communication dosen't work. When I increas STM32 voltage to 3.5 V everything is fine. Is there an limitation ...

STM32L476RGT which are the 5V tolerant pins? Where can I find these infomation in data sheet?

2020-12-16
Hello, I use for STM32 (1.8V VDD) SPI communication with an slave temperature Sensor (3.5V basic voltage, detects high at 0,7*3,5V)SCLK =PC10SDO = PC11SDI= PC12CS = PC13For that reason I want to use an external 3.5V Pullup. But I'm not sure if this ...

TSV630 Logic High Level Voltage

2020-06-15
Hi,I'm doing a design with TSV630. VCC+ is 3.5 V and VCC- is GND and GAIN=1. What is the minimum Voltage for the SHDN pin to switch the device on? I couldn't find a formular in datasheet. In Datasheed there are only mentioned the different minimum SH...

STM32L476G Discovery Board VBUS Voltage on PC11

2020-05-15
Hello,I have an question concerning the VBUS Pin which is connected to the STM32L476G Discovery (PIN PC11) directly. Why isn't 5V an problem for the PC11 pin? I thougt 5V would cause overvoltage?
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